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They can only run OS X El Capitan if they have at least 2 GB of RAM. Of these computers, the following models were equipped with 1 GB RAM as the standard option on the base model when they were shipped originally. These computers can run El Capitan, provided they have at least 2 GB of RAM, with an exception: For example, Apple notes that the newly available Metal API is available on "all Macs since 2012".

System requirements Īll Macintosh products that can run Mountain Lion, Mavericks, or Yosemite can run El Capitan, although not all of its features will work on older models. OS X El Capitan was released to end users on September 30, 2015, as a free upgrade through the Mac App Store. There were multiple betas released after the keynote. The first public beta was made available on July 9, 2015. The first beta of OS X El Capitan was released to developers shortly following the WWDC keynote on June 8, 2015. OS X El Capitan received far better reviews than did Yosemite. El Capitan is the final version to be released under the name OS X. Following the California location-based naming scheme introduced with OS X Mavericks, El Capitan was named after a rock formation in Yosemite National Park. It focuses mainly on performance, stability, and security. Once you've written the new number you can reboot and enjoy full access to iCloud services again.OS X El Capitan ( / ɛ l ˌ k æ p ɪ ˈ t ɑː n/ el KAP-i- TAHN) ( version 10.11) is the twelfth major release of macOS (named OS X at the time of El Capitan's release), Apple Inc.'s desktop and server operating system for Macintosh.

Make double, triple, and quadruple sure you enter the correct number as you will not get a second chance. Hold down Option once you hear the startup sound to get to a boot menu.īlank Board Serializer will now launch and prompt you to enter a new serial number for your board. This will overwrite the entire disk so make sure you get the disk number right here as well.Įnter your administrative password if prompted. Make sure not to enter the wrong number here.Įxecute sudo dd if=/path/to/BBS.dmg of=/dev/diskX bs=1m replacing the input path with the path to your downloaded Blank Board Serializer dmg and setting the correct disk number on your output path. Launch Terminal from your Applications > Utilities folder.Įnter the command diskutil list to see a list of the disks you have connected and identify the USB stick.Įnter diskutil unmountDisk diskX to unmount the disk, replacing X with the disk number of your USB stick. Note: You should be authorized by Apple to use this software. You may be able to get it from the Macintosh Repository. It could also be on your receipt or in your Apple account.ĭownload the Blank Board Serializer software. You can find your Mac's serial number on the box in came in. This is imperative as you only get one chance to enter a new serial number.

Locate the correct serial number for your Mac.